Damage Over Time (DOT) - an effect which causes damage for several rounds.

Defense Value (DV) - a number that reflects how difficult it is to succesfully hit a target.

Experience Points (XP) - points given to reward characters for success in combat, task-completion, and story advancement; accumulation of points allows characters to increase their abilities.

Game Master (GM) - (also: DM, dungeon master) a participant in a multiplayer game who acts as the storyteller and rules arbitrator. The GM's purpose is to weave the other participants' stories together, control the non-player aspects of the game, and describe environments in which the players can interact.

Gold Piece (GP) - A gold coin, equal in value to 100 silver pieces.

Health Points (HP) - a measure of a character's health, the amount of damage he can take before dying or becoming incapacitated.

Hex Radius - on a hexagonal map, the hex that the source of the effect is in, plus all hexes that are within a certain number of contiguous hex spaces from the source.

In Character (IC) - something said, done, or known by the character within the game.

Initiative - a system for determining which character acts first, or the order in which players take turns.

Line Of Sight (LOS) - an imaginary line drawn between subject and target; the subject may only act or fire upon the target if the line is unobstructed.

Magic Points (MP) - a measure of magical energy within a character which is drained by the casting of spells and recovered by rest.